physics wave and particles properties of light interference

physics wave and particles properties of light interference...

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TITLE PRESENTATION ON WAVE AND PARTICLE PROPERTIES OF LIGHT INTERFERENCE NAME ABDUL GHANI SHAHZAIB S/O: MOHAMMED ARIF CLASS BSCS-I SECTION A ROLL # 01 BATCH 2008-2012 SUBJECT PHYSICS TEACHER BADI-UR-REHMAN DEPARTMENTCOMPUTER SCIENCE DATE 15-04-08 UNIVERSITY KARACHI UNIVERSITY
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WAVE AND PARTICLE WAVE AND PARTICLE     PROPERTIES OF LIGHT PROPERTIES OF LIGHT     INTERFERENCE INTERFERENCE A KNOWN HISTORY OF LIGHT: Θ 1000 AD It was supposed that Light consisted of Tiny Particles. Θ Sir Isaac Newton He used this Particle Model to explain Reflection and Refraction. Θ Huygens 1670, He explained Properties of Light by proposing Light was Wave like. Θ Young 1801, Strong support for Wave Theory by showing Interference . Θ Maxwell 1865, Electromagnetic waves travels at Speed of Light. Θ Planck EM radiation is quantized. It Implies Particles. He further explained Light Spectrum emitted by Hot Objects. Θ Albert Einstein
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He proved light as Particle Nature. He explained the Photo Electric Effect. DUAL NATURE OF LIGHT Experiment can be devised that will display Either the Wave Nature or Particle Nature of Light. Nature prevents testing both qualities at the same time.
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THE NATURE OF LIGHT Particles of Light are called Photons. Each Photon has a Particular Energy. . E = h f . ‘h’ is Planck’s Constant . h = 6.63 x 10 ³³ Js ˉ
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Encompasses Both Nature of Light . Interacts like a Particle. . Also given a frequency like a wave. INTERFERENCE OF LIGHT Waves Two types, transverse and longitudinal Wave speed depends only on the medium Period, Frequency, Amplitude--just like SHM v = λ f Interference Superposition-- adding waves It’s all about Path Length Difference, λ , and. . Sources “in” or “out” of “Phase”
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physics wave and particles properties of light interference...

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